drop refs to coverage (#197)

package.json

@@ -6,7 +6,6 @@
   "exports": "./build/index.js",
   "scripts": {
     "tests": "vitest run",
-    "coverage": "vitest run --coverage",
     "watch": "tsx watch src",
     "build": "tsc",
     "prod": "node .",
@@ -32,7 +31,6 @@
   },
   "devDependencies": {
     "@types/node": "^22.13.14",
-    "@vitest/coverage-v8": "^3.0.9",
     "ts-node": "^10.9.2",
     "tsx": "^4.19.3",
     "typescript": "^5.8.2",